An EMC Data Domain customer has setup a DD VTL for their backup software. They created slots, drives, and tapes. The backup software shows the tape drives and the robot, but not the tapes.
Which step was missed on the Data Domain system?

A.
Import the virtual tapes in the VTL

B.
Configure Fibre Channel LUN masking

C.
Tape labels are not defined

D.
Incorrect media type is defined